If giant X-ray flares churn circumstellar disks enough to keep ne

您还没有登录，登录以后才可以查看答疑和进行提问。

试题详情

If giant X-ray flares churn circumstellar disks enough to keep newborn planets, such as Earth once was, from spiraling into their suns, it would be an ironic twist on our conception of X-ray flares as _____.

A、dangerous
B、predictable
C、ancient
D、ephemeral
E、perilous
F、foreseeable

答案：A,E

专业教师答疑

最新

提问

还没有人问到这里。

问个问题

答疑小程序

最热提问

Quantitative Comparison
xy>0$$xy^{2}$$......
Problem Solving
Which of followings is f(-x) = -f(x)?......
Text Completion
Sometimes principles are sacrificed to (i)_____, t......
Reading Comprehension
In presenting the argument, the author does which ......
Text Completion
The era’s examples of _____ that are cited by th......
Text Completion
The small errors of fact in the work are not suffi......
Sentence Equivalence
At no point in her investigation does Tate allow _......
Quantitative Comparison
Quantity A:x Quantity B:y......

试题详情

专业教师答疑 最新 提问

问个问题

答疑小程序

最热提问

专业教师答疑

最新

提问